1. Game starts, my opponent goes first, when i go can i evolve my pokemon?
2. Is a pokemon lv. X on a basic pokemon still considered basic like shaymin lv. X on shaymin?
1. It has to be the second turn a Pokemon is in play before you can evolve the Pokemon. Or you can use Rare Candy and/or Broken Time-Space to evolve if you go 2nd.
2. Yes it is.